A student needs to prepare 250 mL of a 0.400 M aqueous solution of sucrose, C 12 H 22 O 11 ( aq ) , which is used frequently in biological experiments. A 250 m L beaker. A A 250 m L erlenmeyer flask. B A 250 m L volumetric flask. C Which type of glassware should be used to make this solution (assuming that the accuracy of the concentration is important)

250mL volumetric flask

Explanation:

A beaker is a cylindrical glass or plastic vessel used for holding liquids. Its principal use is not measuring volumes with accuracy

An erlenmeyer flask is used to mixing or stirring solutions, is not used to measure volumes.

A volumetric flask is a glass instrument used in lab that is calibrated to contain a precise volume at a certain temperature.

That means if you want to make a solution with accuracy you must use a 250mL volumetric flask.

I hope it hepls!

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.